#' @md
#'
#' @section Keras Backend:
#'
#' This function is part of a set of Keras backend functions that enable
#' lower level access to the core operations of the backend tensor engine
#' (e.g. TensorFlow, CNTK, Theano, etc.).
#'
#' You can see a list of all available backend functions here:
#' <https://tensorflow.rstudio.com/reference/keras/index.html#backend>.
#'
